iBasso DX300 MAX

GUI.

Similar to DX200/DX220/DX300, 3Max has a dual boot system design where you have access to either full Android OS with its Mango audio app or stripped-down Mango OS with a main interface being that audio app itself.  Each one has its advantages depending on user requirements.  With access to full Android, you have access to WiFi and Bluetooth, can load other apps, stream audio, etc, though you have to be aware that stock 3Max doesn’t have Google Play.  Instead, it comes pre-loaded with APKPure and CoolApk apps where you can search and download most of the apps to install on your DAP.  A simpler way is to download and install Google Play straight from APKPure which I did without any issues.  Then, it will be easier to install your favorite streaming apps, like Tidal or Amazon Music HD, etc.

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Mango OS is a strip down version of operating system built around Mango app interface where the focus is strictly on audio performance without a waste of OS resources on other tasks.  Switching between these two OS is very simple, when you boot up into Android and press’n’hold Power button you have a choice to Power off, Restart, or switch to Mango.  When you switch to Mango, DAP is rebooted and will continue to boot into Mango OS every time until you go to Settings->Advanced and select Android System.  Once Android System is selected, it will only boot into Android OS until you switch back to Mango OS.

3Max comes with an updated version of Mango app, v2.9.8 which looks nearly the same as DX300.  There are a few differences between Mango app and Mango OS interface, they are not identical, and I will cover it later in the review, including differences in sound.

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With a decent size 5” display, when using Mango app you have a better view of the embedded song/album artwork, if one is available.  If not, a default image is displayed.  As already introduced in v2 app of DX220, one change here is that you no longer have to swipe left/right to get to the file/song management and settings.  The main playback screen has a more logical layout where you swipe the artwork display left/right to skip between the songs, and access song search and file management from a shortcut in the upper left corner and settings from a shortcut in the upper right corner.  One brand new addition, similar to DX300, is in the lower right corner of artwork window, you have 3-dot shortcut to bring up NowPlaying list of songs to scroll through – very useful feature.

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Below the artwork, you have track info (bit/rate/format) and a scroll bar to advance through the song where you can tap anywhere to skip.  While in early versions of Mango app you had to tap and drag the current song position to a new one, starting with v2 you can fast forward/back by simply tapping on a timeline like you would on your smartphone.  Unfortunately, this only works in Mango app, not under Mango OS.  Below it, you have a shortcut on the left to provide a more detailed info about the song (including adding to playlist or to delete), and another shortcut on the right to switch between playback modes (play in order, repeat list, shuffle, repeat current song).  Play/Pause and Skip next/prev buttons are big enough and located at the bottom.

In Music search and track management, you can search through your songs (since it is indexed) or by browsing the internal storage directory.  Under indexed list, you can view All Music, or sort by Album, Artist, Genre, Now Playing, and Playlist.  Any song you long press will give you an option to Play, Add to playlist, or Delete.  You also have a setting (3 vertical bars all the way on the right) to specify exactly what you want to see in navigation bar or how you want music to be sorted and viewed.  The level of customization details here is quite impressive.  Plus, all the way at the bottom you have a small area to see the currently playing song and to control its playback with play/pause button.  Tapping on it takes you back to the main Playback screen.

In Settings Menu, you have access to Gapless (on/off), Gain (low, medium, high), Play mode (order, loop, shuffle, repeat, folder play), EQ (on/off, brings you to Graphic/Parametric EQ screen), L/R Balance, 6 Digital filters, Media Scan, and Advanced Setting.  In Advanced you can select USB DAC, Bluetooth DAC, Display Setting, Sleep Timer, and System Info.

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There is also Audio Settings menu under Android Settings where you can adjust DAC Volume (digital volume, Max 100), changing the Gain (low/mid/high), change Digital Filter, set Volume limitation (up to 100), and enable/disable Ultimate Mode (activates 8 DAC channels of each AK4499, or deactivates to only 2 DAC channels).  Under Android Settings in Audio Control Button menu, you can enable/disable audio playback button or switch skip next/prev button assignment.

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Notification bar swipe down is also VERY helpful where besides the usual WiFi, Bluetooth, and Auto-Rotate shortcuts, you can also switch between 6 Digital Filters and change the Gain.

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Mango app vs Mango OS.

I’m sure many will be curious how does Mango app (in Android mode) compares to stripped down Mango OS.  Here is a summary of some of the differences I found while testing 3Max.  There could be more, but these stood out for me.

  • Mango OS start up is faster, while Mango app/Android takes a little longer.
  • Mango app (in Android) navigation is faster, while Mango OS has a slight lag.
  • Mango app (in Android) has EQ and PEQ, while Mango OS has only EQ.
  • In Mango app you can randomly tap on timeline to advance to any part of the song, in Mango OS you have to drag the pointer to a new position like in original DX200.
  • In Mango app “Now playing” directory/list is accessible when you click in lower right corner of artwork window, while in Mango OS you have to tap upper left corner to get to music sorting where you view “Now playing” list.

There are also subtle differences in sound between Mango app and Mango OS, and I will cover it in Sound Analysis section of the review.

EQ.

3Max offers a traditional Graphic EQ (EQ) where frequency bands are fixed, and you only adjust the gain with a slider.  In Mango app (Android mode) you also get Parametric EQ (PEQ) where you have a lot more control over which frequency is being adjusted, bandwidth of the frequency being adjusted, the type of the filter used to adjust the frequency, and of course the gain of the adjustment.  Here are my observations while testing EQ and PEQ.

Graphic EQ (EQ)
  • When enabled, drops the volume to create extra headroom for band adjustment (to avoid clipping).
  • Relatively clean 10-band EQ adjustment (33, 63, 100, 330, 630, 1k, 3.3k, 6.3k, 10k, 16k frequency bands).
  • Whenever you adjust a band, you can see it being shown graphically above the EQ sliders; great visual feedback.
  • 5 genre specific presets are included where each one could be adjusted further and reset to its original state.

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Parametric EQ (PEQ)
  • Includes 6 custom preset settings.
  • When enabled, volume doesn’t drop.
  • While adjusting, I didn’t hear any distortion.
  • Each preset setting has 6 assignable filters/frequencies to shape the sound where each one is represented by a different color on the screen.
  • Filter types: low pass filter, high pass filter, band pass filter, notch filter, all pass filter, peaking filter, low shelf filter, high shelf filter – peaking filter will be probably the most useful.
  • Each filter has: Fc (center frequency, from 33 to 16k), Gain (-20 to 20 dB), Q factor (0.3 to 20) where smaller Q makes the bandwidth wider and bigger Q makes the bandwidth narrower.
  • Fc and Gain could also be adjusted on the touch screen by dragging the pointer left/right and up/down.
  • The sound is adjusted/updated in real time as you move the filter peak and frequency.

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Page 4 – Sound Analysis and Pair up.
Page 5 – Comparison, Wired/wireless connection, and Conclusion.

6 thoughts on “iBasso DX300 MAX

  1. I had the dx220Max in the past and I think the oposite, I have now the dx300max and this one is much more musical and less tiring and aggressive than the dx220, the upgrade is very noticeable, I sold the dx220Max but this one is a keeper

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    1. Are you Denis1976 on head-fi? If so, I remember you were not happy with 2Max, preferring Sp2k over it, if I’m not mistaken. But either way, perhaps we hear things differently or that’s how you remember the sound going by memory. I described the difference between 2Max and 3Max, each one with 250hrs of burn in, side by side, using Traillii and Beyer T5p 2nd gen. But either way, glad you were able to get 3Max and enjoying it!

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  2. I don’t get this type of devices. They are compromised as DAPs since you can’t really put them in your pocket and listen on the go. They are also compromised as desktop devices, because they are too small and the components are cramped inside.
    Transportable? So is RME ADI-2 or Chord Cutest. The latter is even lighter, lol.

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    1. I guess manufacturers keep making these because there is some demand? Look, they manufactured 500 units of 3Max (400 SS and 100 Ti), all of which were sold out right away. And, the big size of Max is due to all these batteries inside. But you have a regular DX300 and now a small and compact DX240.

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